<s>
The	O
Object	B-Application
Exchange	I-Application
Model	I-Application
(	O
OEM	O
)	O
is	O
a	O
model	O
for	O
exchanging	O
semi-structured	B-General_Concept
data	I-General_Concept
between	O
object-oriented	B-Application
databases	I-Application
.	O
</s>
<s>
It	O
serves	O
as	O
the	O
basic	O
data	B-Application
model	I-Application
in	O
numerous	O
projects	O
of	O
the	O
Stanford	O
University	O
Database	O
Group	O
,	O
including	O
Tsimmis	O
,	O
Lore	O
,	O
and	O
C3	O
.	O
</s>
